\begin{table}[htbp]\centering
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\caption{Effect of radio reports on the logarithm of gross prices}
\begin{tabular}{l*{4}{c}}
\toprule
                    &\multicolumn{1}{c}{(1)E5 \textit{Extra-Radio}}&\multicolumn{1}{c}{(2)E5 \textit{Radio Arabella}}&\multicolumn{1}{c}{(3)Diesel \textit{Extra-Radio}}&\multicolumn{1}{c}{(4)Diesel \textit{Radio Arabella}}\\
\midrule
Is petrol station treated at particular period in time?&      0.0033         &     -0.0024\sym{***}&      0.0015         &     -0.0049\sym{***}\\
                    &    (0.0026)         &    (0.0004)         &    (0.0024)         &    (0.0004)         \\
\midrule
Observations        &      350655         &      452481         &      355928         &      457559         \\
Adjusted \(R^{2}\)  &       0.694         &       0.705         &       0.625         &       0.643         \\
\bottomrule
\multicolumn{5}{l}{\footnotesize Standard errors in parentheses}\\
\multicolumn{5}{l}{\footnotesize SEs are clustered at the fuel station level.}\\
\multicolumn{5}{l}{\footnotesize \sym{*} \(p<0.10\), \sym{**} \(p<0.05\), \sym{***} \(p<0.01\)}\\
\end{tabular}
\end{table}
